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5.7.4.2
Interrupt selection
Via
‘Basic parameters’
you can reach
‘Select interrupt’
. Here you can define the inter-
rupts the CPU will trigger. The following parameters are supported:
n
None: The interrupt function is de-activated.
n
Process: The following events of the frequency measurement can trigger a hardware
interrupt (selectable via
‘Frequency counting’
):
–
End of measurement
n
Diagnostics and process: A diagnostics interrupt is only triggered when a hardware
interrupt was lost.
5.7.4.3
Frequency measurement
Default values and structure of this dialog box depend on the selected
‘Operating mode’
.
The following parameters are relevant for frequency measurement, which must be speci-
fied or determined:
1
Integration time
2
Counting pulse
3
SW gate
4
Evaluated frequency
Parameter overview
Operating parameters
Description
Assignment
Integration time
Specify the integration time
Range of values: 10ms ... 10000ms in steps of 1ms
100ms
Max. counting frequency
Specify the max. frequency for the corresponding input
60kHz
Frequency
shortest permissible count
pulse
1kHz
400
µ
s
2kHz
200
µ
s
5kHz
80
µ
s
10kHz
40
µ
s
30kHz
13
µ
s
60kHz
6.7
µ
s
100kHz
4
µ
s
Hardware interrupt
Description
Assignment
End of measurement
Hardware interrupt at end of measurement
de-activated
Parameter hardware con-
figuration
VIPA System SLIO
Deployment I/O periphery
Frequency measurement > Parametrization
HB300 | CPU | 013-CCF0R00 | en | 19-30
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